To take advantage of the kindness of others.
He has been sponging off his friends for a month now.
To get by imposition; to scrounge.
to sponge a breakfast
To deprive (somebody) of something by imposition.
To clean, soak up, or dab with a sponge.
To suck in, or imbibe, like a sponge.
To wipe out with a sponge, as letters or writing; to efface; to destroy all trace of.
To be converted, as dough, into a light, spongy mass by the agency of yeast or leaven.
The application of a sponge.